Three in the morning, a storm still coming down sideways, and the only lights moving on Route 4 are plow lights. Doucette Excavating and Logging runs Berwick driveways and lots through the night so the town can leave for work as though nothing happened. Plowing, widening the banks back before the next one fills them, sanding the slick spot at the bottom of the hill, shoveling the walk clean all the way to the door. Cold pours down the Salmon Falls valley and sets hard by dawn, which is why the blade goes to pavement instead of leaving a skim to freeze. By the time the sky turns gray over the New Hampshire side, the drive is open and the day can start.